This place has been begging for a hide since it opened to the public.
Yes it's a nano hide.
And it's a park, a different type of park.
Almost like a needle in a haystack. 
You just have to find it, log it and return it.
Or don't, if you don't want to. You don't have to.
NB. GPS signal accuracy may be affected in this area no matter where you are.
And be aware you may be watched while searching in this area.